I don't understand how you could like someone without even knowing them as a person . Why would you even thinking of telling someone you like them if you don't know anything about them? She has a boyfriend too.

Also lol

(Original post by MrVinny)
...Good luck, If you need more advice get to the doctors.

You 'like' girl. You've never spoken to her. She has a boyfriend and doesn't know you exist.
You have to options:
talk to her and wow her with your amazingness and win her
get over her, you barely no her anyway.